Question

In a dryer whose operation can be considered analogous to that of an adiabatic humidification tower, 1 000-Kg / h of a wet solid from 65% to 15% humidity, based on the dry solid, is dried. The available air is at 15 ° C with a relative humidity of 60%; enters the dryer with a humid temperature of 25 ° C and leaves with a relative humidity of 85%. Calculate the volume of air at the entrance of the dryer and the hourly preheating heat of the dryer.

Answer 1